CVE-2019-25013

Application crash via skipped invalid EUC-KR sequence

Published Jan 4, 2021 · Updated Jun 9, 2025

Out-of-bounds read in GNU C Library iconv through 2.32 allows local users to crash applications via malformed EUC-KR input. The from_euc_kr conversion routine skips two bytes for a disallowed 0xfe designation without first ensuring that both bytes remain in the input buffer. The crash path requires attacker-controlled EUC-KR data to reach conversion that discards invalid input; no write or code-execution impact is reported.

CVSS severity5.9
Medium
EPSS probability3.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in GNU C Library iconv through 2.32 allows local users to crash applications via malformed EUC-KR input. The from_euc_kr conversion routine skips two bytes for a disallowed 0xfe designation without first ensuring that both bytes remain in the input buffer. The crash path requires attacker-controlled EUC-KR data to reach conversion that discards invalid input; no write or code-execution impact is reported.

The record

CVE
CVE-2019-25013
Published
Jan 4, 2021
Updated
Jun 9, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-125, T1499
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Jan 4, 2021CVE publishedPublication date reported by the CVE source.
  2. Jun 9, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.9NIST NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
5.9CISA-ADPCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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